started dymanic gect with lstm
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import numpy as np
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from ml_gestures.feature_extractor import normalize_landmarks
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def extract_sequence(landmarks_seq):
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"""
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landmarks_seq: список массивов (каждый (33,4) или (33,3))
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Возвращает np.array формы (seq_len, 99)
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"""
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seq = []
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for lm in landmarks_seq:
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if lm is None:
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seq.append(np.zeros(99)) # если пропущен кадр
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else:
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seq.append(normalize_landmarks(lm))
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return np.array(seq)
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import numpy as np
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import tensorflow as tf
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import joblib
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from collections import deque
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from .feature_extractor import extract_sequence
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class DynamicGesturePredictor:
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def __init__(self, model_path, classes_path, window_size=30, threshold=0.7):
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self.model = tf.keras.models.load_model(model_path)
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with open(classes_path, 'rb') as f:
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self.classes = joblib.load(f)
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self.window_size = window_size
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self.buffer = deque(maxlen=window_size)
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self.threshold = threshold
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def add_frame(self, landmarks):
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self.buffer.append(landmarks)
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def predict(self):
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if len(self.buffer) < self.window_size:
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return None
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seq = extract_sequence(list(self.buffer))
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seq = np.expand_dims(seq, axis=0) # (1, window, 99)
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probs = self.model.predict(seq, verbose=0)[0]
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idx = np.argmax(probs)
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if probs[idx] > self.threshold and self.classes[idx] != 'none':
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return self.classes[idx]
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return None
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def reset(self):
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self.buffer.clear()
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import pandas as pd
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import numpy as np
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import os
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from sklearn.model_selection import train_test_split
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def load_sequences_from_csv(csv_path, max_len=30, test_size=0.2, random_state=42):
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"""
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Загружает последовательности из одного или нескольких CSV-файлов.
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Возвращает X_train, X_test, y_train, y_test, le (LabelEncoder).
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"""
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if os.path.isdir(csv_path):
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dfs = []
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for f in os.listdir(csv_path):
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if f.endswith('.csv'):
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dfs.append(pd.read_csv(os.path.join(csv_path, f)))
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df = pd.concat(dfs, ignore_index=True)
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else:
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df = pd.read_csv(csv_path)
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sequences = {}
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for seq_id, group in df.groupby('sequence_id'):
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group = group.sort_values('frame')
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label = group['label'].iloc[0]
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features = group[[f'f{i}' for i in range(99)]].values
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# Обрезаем или падинг
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if len(features) > max_len:
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features = features[:max_len]
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elif len(features) < max_len:
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pad = np.zeros((max_len - len(features), 99))
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features = np.vstack([features, pad])
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sequences[seq_id] = (label, features)
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labels = []
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X = []
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for label, feats in sequences.values():
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labels.append(label)
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X.append(feats)
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X = np.array(X)
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from sklearn.preprocessing import LabelEncoder
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le = LabelEncoder()
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y = le.fit_transform(labels)
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X_train, X_test, y_train, y_test = train_test_split(
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X, y, test_size=test_size, stratify=y, random_state=random_state
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)
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return X_train, X_test, y_train, y_test, le
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import cv2
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import numpy as np
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import csv
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import sys
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import time
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from pathlib import Path
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import argparse
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sys.path.append(str(Path(__file__).parent.parent))
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from skeleton.mediapipe_detector import MediaPipeDetector
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from ml_gestures.dynamic.feature_extractor import extract_sequence
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('--label', required=True, help='Название жеста (например, wave_left)')
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parser.add_argument('--output', default='dynamic_data.csv', help='CSV файл для сохранения')
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parser.add_argument('--camera', type=int, default=0)
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parser.add_argument('--duration', type=float, default=3.0, help='Длительность записи (сек)')
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args = parser.parse_args()
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detector = MediaPipeDetector()
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cap = cv2.VideoCapture(args.camera)
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if not cap.isOpened():
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print("Камера не найдена")
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sys.exit(1)
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# Определяем следующий ID последовательности
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try:
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import pandas as pd
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df = pd.read_csv(args.output)
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next_id = df['sequence_id'].max() + 1 if not df.empty else 0
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except:
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next_id = 0
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print(f"Запись жеста: {args.label}. Нажмите SPACE для начала, q для выхода.")
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recording = False
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start_time = 0
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sequence = []
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while True:
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ret, frame = cap.read()
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if not ret:
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break
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frame = cv2.flip(frame, 1) # зеркало для удобства
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result = detector.detect(frame)
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if result['success']:
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landmarks = result['landmarks']
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vis = detector.draw_landmarks(frame, result['pose_landmarks'])
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if recording:
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sequence.append(landmarks)
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elapsed = time.time() - start_time
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if elapsed >= args.duration:
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recording = False
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# Сохраняем последовательность
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seq_features = extract_sequence(sequence)
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with open(args.output, 'a', newline='') as f:
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writer = csv.writer(f)
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for i, feat in enumerate(seq_features):
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writer.writerow([args.label, next_id, i] + feat.tolist())
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print(f"Сохранено {len(sequence)} кадров для жеста {args.label}, ID={next_id}")
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sequence = []
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next_id += 1
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else:
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vis = frame
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if recording:
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cv2.putText(vis, f"RECORDING... {elapsed:.1f}/{args.duration}", (10, 30),
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cv2.FONT_HERSHEY_SIMPLEX, 0.7, (0,0,255), 2)
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else:
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cv2.putText(vis, f"Press SPACE to record '{args.label}'", (10, 30),
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cv2.FONT_HERSHEY_SIMPLEX, 0.7, (0,255,0), 2)
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cv2.imshow('Record dynamic gesture', vis)
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key = cv2.waitKey(1) & 0xFF
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if key == ord('q'):
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break
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if key == ord(' ') and not recording:
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recording = True
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start_time = time.time()
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sequence = []
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cap.release()
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cv2.destroyAllWindows()
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if __name__ == '__main__':
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main()
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